Caoutchouc
n. 纯橡胶, 生橡胶\\n[化] 生橡胶
✅ 同义词
🗣️ 情景例句
He's had so many colds and sore throats recently.
他最近常常感冒喉咙痛。
In case of fire, keep your head.
万一发生火灾，保持镇定。
The relay race
接力赛